Air Break Practice Test

Results

#1. What is the purpose of a quick release valve?

(a) To allow faster application of the service brakes

(b) To allow faster release of the service brakes

Both (a) and (b)

A quick release valve near the brake chambers allows the service brakes to release quickly and fully, by allowing the compressed air from the brake chambers to exhaust at the valve instead of flowing all the way back to the foot valve to be exhausted there.